Detachable electric light fixture



Jan. 3, 1950 l.. A. MlNToN DETACHABLE ELECTRIC LIGHT FXTURE Filed Feb.5, 1945 Patented Jan. 3, 1950 UNITED STATES PATENT OFFICE DETACHABLEELECTRIC LIGHT FIXTURE Leslie A. Minton, Portland, Oreg. Y

Application February 5, 1945, Serial No. 576,168

6 Claims. l

The present invention relates to electric lamp fixtures, and aims toprovide a novel and improved quick detachable electric lamp xturewhereby a lamp hanger or bracket may be quickly attached to and detachedfrom a ceiling, wall, or other support, and permitting diierent iixturesto be used interchangeably.

Another obj ect of the invention is the provision of a novel jointbetween the fixture hanger, stem or bracket, and the supporting member,to permit the parts to be readily assembled and separated.

A further object of the invention is the provision of a bell or jointconcealing member mounted on the hanger or bracket, and adapted to bear,under spring influence, against the ceiling, wall or other surface,without requiring adjustment.

With the objects above indicated and other objects hereinafter explainedin view, my invention consists in the construction and combination ofelements hereinafter described and claimed.

The invention is illustrated in the accompanying drawing, wherein-Figure 1 is a side elevation of the improved lixture, showing the outletbox and the bell or concealing member in section;

Figure 2 is a section on the line 2--2 of Figure 1.

The xture as illustrated is for a ceiling of a room, although it will beunderstood that the improvements may be used for wall and other xtures.

The outlet box 1 is secured within the ceiling 8, or the wall or othersupporting member, and has secured therein a socket 9.

A tubular hanger, stem or bracket I has a slip joint member II securedin one end thereof, and said joint member is adapted to slip into thesocket 9, for the quick and convenient attachment of the stem Illv tothe outlet box or supporting member.

In order to hold the stem in place, a V-shaped spring catch I2 isdisposed Within the joint member II and has outstanding cam lugs I3 atits ends disposed Within apertures I4 in the member II to snap intoapertures I5 in the walls of the socket 9, as seen in Figure 2, therebyholding the stem I0 in place. The catch I2 has a loop or eye I6 at itscrotch embracing a pin I1 secured in the member I I.

The catch I2 is released from the socket 9 by means of a U-shaped slidemember I8 movable in the member II astride the loop or eye I6, and saidslide member is attached to the corresponding ends of a slide rod I9movable in the member the arms vof the catch are sprung toward onevanother, thereby retracting thevlugs I3 so that the stem I0 may bereadily withdrawn from the socket 9. Y

The rod I9 has a bent back terminal portion 20 at the end of the stem I0opposite to the joint member I I, disposed within a slot 2I in a, head22 secured to the corresponding end of the stem I Il, and the terminal20 is roughened to provide a nger piece for conveniently sliding the rodI9.

The wires 23 for the electric lamp or lamps exare connected with pins 24secured within a blockl 25 of insulating material attached to the stemI0 near the joint member II. The pins 24 are adapted to slip intosockets 2S within a block 21 of insulating material carried by a plateor bar 28 secured to the socket 9, so that when the joint member II isslipped into the socket 9, the pins 24 enter the sockets 26, to make theelectrical connections. The lead wires 29 which enter the outlet box 1are connected to the sockets 26. Electrical connections are thus madewhen the stem I0 is attached to the outlet box.

The stem I0 has an opening 39 through which the wires 23 extend, a sheetmetal bell or concealing member 30 is slidable, as at 3|, on the stemI0, and is connected by coil springs 32 with the stem, so that when thestem is connected with the outlet box, the ilared rim of the bell ormember 39 will contact with the ceiling wall, or surface 8, the springs32 which are concealed within said bell or member 3D will be stretchedas the member II enters the socket 9, thereby holding said bell ormember under pressure against the surface of the ceiling or wall aroundthe outlet box 1.

From the foregoing, it is apparent that the stem I 0 or xture proper maybe readily detached for purpose of repair, cleaning, or replacement, anddifferent fixtures may be used interchangeably.

While I have described the preferred embodiments of the invention, it isto be understood that I am not to be limited thereto inasmuch as changesand modications might be resorted to without departing from the spiritand scope of the invention as defined in the appended claims.

Having this described the invention, what is claimed as new is:

1. An electric lamp ilxture comprising a, supporting member, a stemhaving a slip connection with said member, a catch mounted in the stemto engage said member, a rod slidable in the stem and cooperable withsaid catch to disengage it from said member, and said rod having anactuating nger piece clear of said stem.

2. An electric lamp iixture comprising a Socket, a stem having aterminal portion to enter said V socket, a V-shapedl catch in said stemhaving terminal portions to engage said socket, a rod slidable in thestem, and a, U-shaped member connected to said rod t9 mpve-astride saidcatch to ,disengage it from said socket.

3. An electric lamp fixture comprising a supporting member, a stem oneend of which has a slip-joint connection with said member, the sternlhaving a, head at its other idf'p'rovided Witha slot, a catch mounted inthe stem to ,engage tsaid means connected to said concealing member andmember, and a rod slidable in the stem and col operable with said catchto dsengage itfromsaid member, said rod having a finger piece in saidslot. Y 4. An electric lamp flgfture comprising a sup- Psieg member, aieifeeans cleaehably ,Conf @eine me Stem' to: 'said member., aCentraline member ldeil@ Oli the naar FQ @ale-stretti a Santeearoafifiagmember, @Spring operatively connected Ato 'said concealingmember and stem @ad Parcells' actuating the @neming member tebpe'ative'resta an@ ai; attuate? terne@ by sa Stem aaeperatvelyconnects@ t0 thev tothe stem for maintaining the concealing member inits operative position.

Y LESLIE A. IWINTON.

REFEEENCES CITED 4following references are of record in the le of thispatent:

Number Name Bate '157,730 Washburn Dec. 15, 1874 1,059,341 G-,rovveliVApr. 22, 1913 1,Q89,f197 Reed v Mar. 10, 1914 1,712,768 Johnston T May14, 1929 2,377,872 Farrington et al. ,lune 1,2, 1945 ROBE-@N -ETENTSNumber f--Gountry -Date 24,828 Great Britain ,of 1899 Austria T Apr',10, 1931

